How To Fix TRUST088 - SSL server &1

SAP Error Message - Details

• Message type: E = Error

• Message class: TRUST - Certificate Management

• Message number: 088

• Message text: SSL server &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message TRUST088 - SSL server &1 ?

  The SAP error message TRUST088 typically indicates an issue with SSL (Secure Sockets Layer) communication, specifically related to the trust relationship between the client and the server. The error message format usually looks like this: "TRUST088 SSL server &1".
  Cause:
  
  Certificate Issues: The SSL certificate presented by the server may not be trusted by the client. This can happen if the certificate is self-signed, expired, or not issued by a trusted Certificate Authority (CA).
  Missing CA Certificates: The client may not have the necessary CA certificates installed to validate the server's SSL certificate.
  Incorrect SSL Configuration: There may be misconfigurations in the SSL settings on either the client or server side.
  Hostname Mismatch: The hostname in the SSL certificate does not match the hostname of the server being accessed.
  
  Solution:
  
  
  Check the SSL Certificate:
  
  Verify that the server's SSL certificate is valid (not expired) and issued by a trusted CA.
  If it is self-signed, consider adding it to the client's trust store.
  
  
  
  Install CA Certificates:
  
  Ensure that the necessary CA certificates are installed in the client's trust store. This can usually be done through the SAP Trust Manager (transaction code STRUST).
  Import the required CA certificates into the appropriate SSL client or server trust store.
  
  
  
  Review SSL Configuration:
  
  Check the SSL configuration settings in both the SAP system and the web server (if applicable). Ensure that the SSL protocols and ciphers are correctly configured.
  
  
  
  Hostname Verification:
  
  Ensure that the hostname used to access the server matches the Common Name (CN) or Subject Alternative Name (SAN) in the SSL certificate.
  
  
  
  Testing:
  
  After making changes, test the connection again to see if the error persists. You can use tools like OpenSSL to test the SSL connection and verify the certificate chain.
  
  
  
  Related Information:
  
  SAP Trust Manager (STRUST): This transaction is used to manage SSL certificates and trust relationships in SAP systems.
  SSL Configuration Guide: Refer to SAP's official documentation for detailed steps on configuring SSL in your specific SAP environment.
  Logs and Traces: Check the SAP system logs (transaction SM21) and traces (transaction ST22) for additional information related to the error.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting with your system administrator for further assistance.